So as the ERE, I'm reorganising my empire under a bunch of vassal Despots, but I'm not a fan of some of the de jure Kingdoms, so I'm trying to redraw their borders in-game. I've created the Kingdom of Anatolia, and am trying to transfer the duchies of Cibyrrhaeot and Samos to the Despot of Anatolia, but the only duchy level titles that show up are Thracesia and the Varangian Guard. All of my direct baronies and counties are available, but none of the duchies. Both duchies are direct vassals of me, and I hold the Kingdom of Greece, so could this be the problem, or can you only transfer de jure duchies to Kingdoms?